<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>css</title>
		<style type="text/css">
			.red {
				width: 100px;
				height: 100px;
				background-color: red;
			}
			.green {
				width: 100px;
				height: 100px;
				background-color: green;
			}
			.nihk {
				font-size: 25px;
			}
			p {
				/* font font-style font-weight  font-size/line-height  font-family; */
				font:   25px '微软雅黑';
			}
		</style>
	</head>
	<body>
		<div class="red nihk">
			刘德华
		</div>
		<div class="green">
			2
		</div>
		<div class="red">
			123
		</div>
		<p>12123</p>
	</body>
</html>
